Screen



Jan. 9, 1923.. 1,441,684,

G. E. HULSE.

SCREEN. FILED JAN.28,1919.

Patented Jen Q, i923.

SCREEN.

Application filed. January 28 2'70 (12/1 w/zom 2'1? may concern Be itknown that V theorists ll citizen of the United mtates, auda res ofNewark, in the county o'l Essex an i of New Jersey, have invented animprovement in Screens, of which the following is a specification. p

This invention relates to apparatus for fluid purification, andwithregard to its more specific features, to fluid straining devices.

, )ne of the objects of my invention is to provide fluid strainingapparatus which shall be relatively simple and cheap in construction,and reliable in action.

Another object is to provide means of the type set forth oistrong anddurable construction, and adapted for readyclean- I", 1 construction,combinations of elements and arraing'eiuent of? parts, which will beexemplified in the cinistruction hereinafter set 'liorth, and the scopeof the no plication oi which will be ii'ldicated in the followingclaims.

in the accoin enying dra lugs wherein is shownone of various possibleembodiments of the several features of this invention,

Fig. 1 is a view in longitudinal section of my strainer, indicg 9; itsmain'ier of ap-' plication between a gas reservoir and a r ducing Valve.

Figs. 2, 3 and 4r. are transverse sectional views along; lines E22, andas respectively of F l. j

5 is broken sectional view taken along line 5 i 3.

Similar referencecharacters refer to similar parts throughout the.lifferent views of the drawings.

.lleterring now to the drawings, ll have shown a diagrammatic section ofa gas reservoir 1:2, and a reducing valve construction 13, between whichmy strainer is conne ed, its my invention does not reside in her the gasreservoir or the reducing valve, taken by itself, it may simply be notedthat the reser oir is any desired form of container in which gas may bestored u'mler high pressure.

,1919. Serial no. 273,532.

The reducing valve functions to transmit the gas at redi il pressureafter it has been purified by pass e through the strainer.

v ltily lnlljfiffiftnl ;'o n of strainer preferably consists of twosolid and relatively rigid metallic members, a sleeve inember'l, and aplug member 2 fitting therein. My sleeve member preferably comprises ametallic tube having a smooth here as at 3, and having threads eat oneend, of an internal diameter no less than that of the bore, for apurpose appearing more i'ully below. Plug member 2 which is fitted insleeve member 1 is threaded throughoutits length, the external diameterof saidthreads for the part of the length of said plug corresponding tosmooth bore 3, being eqiral to the diameter of said bore, so that theedges of said thread are in close contact with the bore throughout itslength as clearly appears in 5. The end of plug; member 2, has threads4- of somewhat larger diameter to cooperate with threads 4!: at the endof sleeve l, for securing); the plug within sleeve.

The entire length of plug 2 except securing end i has one sidepreferably flattened as shown at 5, in 1 and 3, to leave relativelysmall gap or chamber 6 between. the surface of bore the sleeve and saidO flattened portion, extending substantially the length of the plug.Upposite this flattoned portion 5, the plug 2 is preferably similarlyflattened as at 7, to leave a gap 8 between the adjacent surface of thetube and said flattened portion. This flattened portion, howeverpreferably extends only to the point 17 in proximity to the inner end oftheplug, the threads being left on the plug beyond said point. Thesmooth inner surfaceg of the tube 1 contacting the edges of the oppositethreads at the sides or plug 2, there are thus provided a plurality ofarcuate passages substantially triang l in section as shown at 11 in Fi5,each leadimg' f" brought into full co-operati-on. If desired a slot 16may be provided in the end of'the plug for insertion of a screw driveror the like to facilitate asseinbly.

Although as hereinbefore noted, this strainer is of value in various:relations, nevertheless it possesses particular advantages in cleansinghighly compressed gases such as oxygen, acetylene or Pintsch gas, andthe apparatus here diagrammatically shownindicates it in such relation.Briefly stated, the part 12 represents a heavy casing or :tank of highlycompressed gas, and the ca ing 13 is that ofa reducing valve in whichthe valve proper, 1 1, is automatically controlled in the well knownmanner by a dia P as 5- i In operation, the gas passes from thereservoir 12, through channel 10, into the space 8, which latterconstitutes a longitudinally extending intake passage. From passage 8,

the gas then travels circumferentially about the plug as shown by arrowsin Fig. 3, through the small substantially triangular passages 11, asshown in 5. The gas after leaving the intake passage 8, is thus dividedinto twice as many separate channels as there are threads on the plug.In view of the minuteness of channels 11, small particles of solidimpurities will be prevented from entering or Will be arrested in suchpassages, thereby cleansing the. gas. After emerging from the numerouspassages 11, the gas enters the longitudinally extendscribed apparatusin which the several fea- .tures of this invention are embodied, whichapparatus in its action attains the various objects of the invention andis well suited to meet the requirements of practical use.

As many changes could be madein the above construction, and manyapparently widely difierent embodiments of this invention could be madewithout departing from the scope thereof, it is intended that all mattercontained in the above description or shown in the accompanying drawingsshall hev interpreted as illustrative and not in a limiting sense.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is: V r

1. A fluid strainer or the like comprising a fluid passing therethrough,and means for,

removing said plug member from said sleeve member whereby said endportion of said plug scrapes the interior wall of said sleeve to cleansaid wall of matter strained from said fluid.

' 2. A fluid strainer or the like comprising in combination asubstantially rigid sleeve member, a plug member removably" fitted intosaid sleeve member and having a channel formed longitudinally therein toform a passage with the wall. of said sleeve member, means forming achannel diametrically opposite said channel and between said plug andsaid sleeve, a plurality of restricted passages connecting said twochannels adapted,

to strain a fluid passing therethrough, means associated with theinterior end of said plug and shaped to contact with a substantialportion circumferentially of the interior Walls of said sleeve member,and means for removing said plug member from said sleeve member wherebysaid means associated with the end portion of said plug scrapes theinterior wall of said sleeve to clean said. wall of matter strained fromsaid fluid.

' 3. A fluid strainer comprising in combination a sleeve member, a plugmember fitted therein, means for securingsaid plug to said sleeve, acircuitous path for the passage of a fluid extending in the surface ofone of said members and between said two members, said path havinglongitudinally and circumferentially extending elements, and a pluralityof said circumferentially extending elements forming the communi cationbetween twoadjacent longitudinally extending elements and adapted tostrain the fluid passing therethrough.

a. A fluid strainer, comprising in combination, a sleeve member, a plugmember fitting therein, and a plurality of circuitous paths for thepassage of fluid, bounded by adjoining surfaces of said two members,said paths being formed by a substantially helical groove adapted tostrain the fluid passing therethrough and means for leading fluidsimultaneously to a plurality of said paths.

5. A fluid strainer, comprising in combination, a sleeve member, a plugmember fitting therein, and a plurality of circuitous paths for thepassage of fluid, bounded by adjoining surfaces of said two members,said paths being formed by a substantially helical groove adapted tostrain the fluid passing therethrough and means for leading fluidsimultaneously to a plurality of said paths and additional means fortapping fluid simultaneously :lrom a plurality of said paths.

6. A fluid strainer comprising in combination, a sleeve member, a plugmember litting therein, cooperating means on adjoining surfaces forsecuring said members together, and a threaded portion on said plugmember contacting with the inner surface of said sleeve member, saidthreaded portion being mutilated on diametrically opposite sides along apart of its extent to provide a straining passage for fluid.

7. A. fluid strainer comprising in combination a sleeve member, and athreaded plug member inserted therein, said plug member having thethread thereon removed at two substantially diametrically opposite andlongitudinally extending portions thereof to provide a straining pathfor fluid and having the thread at one end thereof extendcircun'iferentially throughout more than one half the circumference ofsaid plug member to form a support for said end of said plug member insaid sleeve.

8. A. fluid strainer, comprising in combination, a sleeve member, and aplug member threaded therein, parts oi: the threads on one of saidmembers being removed to provide a plurality of parallel paths forsubdividing and straining fluid and formed by the remaining parts ofsaid threads on said one member and the adjacent surface of the othermember.

9. ll fluid strainer, comprising in combination, sleeve member, and aplug member threaded therein, parts of the threads on said plug memberbeing removed to provide a plurality of parallel paths for subdividingand straining fluid and formed by the ren'iaining parts of said threadsof said one member and the adjacent surface of the other member.

10. A fluid strainer, comprising in combination, a plug member havingtwo threaded portions, a sleeve member having threads near one endadapted to cooperate with one threaded portion oi. said plug member, thethreads on said sleeve member being lacking beyond said end to form aplurality of substantially? parallel paths for fluid be tween saidsleeve and the adjoining threads of the other portion of said plug,means for leading fluid to said paths in parallel and means for leadingsaid fluid from said parallel paths.

11. A]. fluid strainer, comprising in combination, a sleeve member, aplug member fitting therein, a substantially longitudinal intake pathand a plurality of relatively line )assages connected to said path, saidpath and all said passages being bounded by adjoining surfaces of saidsleeve and said plug member, and means for allowing exit of said fluidfrom said passages.

12. it fluid strainer, comprising in combination, a sleeve member, aplug member fitting therein, a substantially longitudinal intakepath,asubstantially longitudinal. exhaust path substantially oppositesaid first path, and a plurality of relatively line passages connectingsaid paths, all said. paths and passages being bounded. by adjoiningsurfaces or said sleeve and said plug members.

18. A. fluid strainer, comprising in combinaticn, a sleeve member, athreaded plug member fitted therein, said sleeve having smoothcylindrical portions resting against the outer edges of the threads insaid plug, a substantially flattened portion cooperating with saidsleeve to form an intake passage and adjoining said cylindrical portion,a similar exhaust adjoining the opposite side of said cylindricalportion, and means for securing said plug within said sleeve member.

14. A fluid strainer, comprising in combination, a threaded sleevemember, a threaded pl member screwed therein by cooperating threads nearone end, said sleeve men'iber being substantially smooth beyond saidthreaded portion, the concave surface of said sleeve resting against theouter edges of the threads on said plug, and means to allow e of fluidfrom between said latter cooperatmg elements.

15. it fluid strainer, comprising in com bination, a threaded sleevemember, a threaded plug member secured therein by cooperating threadsnear one end, said sleeve member being substantially smooth beyond saidthreaded portion and said plug being two based zonal in cross section,the concave surfaces oi? said sleeve resting against-the outer edges ofthe threads on said plug, and means allowing passage of fluid past saidthreaded securing means.

16. In a fluid strainer, in combination, a sleeve member, a plug memberfitted therein, and a single circuitous path for fluid having includedtherein two main passages and a plurality of parallel straining passagescon necting said tvo main passages formed in the surface at one oi saidmembers and bounded by adjoining surfaces of said members.

17. A fluid strainer comprising in combination sleeve member having asubstantially smooth bore, a threaded plug member therein, means on saidplug member adapted to form a pair of substantially oppositely disposed,longitudinally extending chambers, said plug member having the externaldiameter of its threads substantially equal to that of said bore wherebysaid threads form. a communication between said chambers, and means forremovably securing said members together.

18. A fluid strainer comprising in combi nation a sleeve member having asubstantially smooth bore, a threaded plug member therein, means on saidplug member adapted to form a pair of substantially oppositely disposed,longitudinally extending chambers, said plug member having the externaldiameter of its threads substantially equal to that of said bore wherebysaid threads form a communication between said chambers, securingthreads of larger diameter threads of larger diameter near the externalend of said plug, and cooperating threads in said sleeve.

In testimony whereof, I have signed my name to this specification this16th day of January, 1919.

GEORGE E. HULSE,

